Search a number
-
+
311012124 = 223296713339
BaseRepresentation
bin10010100010011…
…010101100011100
3210200020001102120
4102202122230130
51114104341444
650510022540
710464362613
oct2242325434
9720201376
10311012124
1114a616015
12881a7a50
134c585257
142d43c87a
151c486b19
hex1289ab1c

311012124 has 48 divisors (see below), whose sum is σ = 761980800. Its totient is φ = 98594496.

The previous prime is 311012123. The next prime is 311012147. The reversal of 311012124 is 421210113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311012123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16647 + ... + 29985.

It is an arithmetic number, because the mean of its divisors is an integer number (15874600).

Almost surely, 2311012124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 311012124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380990400).

311012124 is an abundant number, since it is smaller than the sum of its proper divisors (450968676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311012124 is a wasteful number, since it uses less digits than its factorization.

311012124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13442 (or 13440 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 311012124 is about 17635.5358296821. The cubic root of 311012124 is about 677.5256992017.

Adding to 311012124 its reverse (421210113), we get a palindrome (732222237).

The spelling of 311012124 in words is "three hundred eleven million, twelve thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 29 58 67 87 116 134 174 201 268 348 402 804 1943 3886 5829 7772 11658 13339 23316 26678 40017 53356 80034 160068 386831 773662 893713 1160493 1547324 1787426 2320986 2681139 3574852 4641972 5362278 10724556 25917677 51835354 77753031 103670708 155506062 311012124